13 1/2” X 18 1/4” Serigraph poster. This poster I believe to be the next to last produced (before Bandelier) as the original colors were brown, yellow, pink, tan and green--probably the last inks left on the shelf! We've chosen to keep our RDE colors shown above. This is another poster which had initials scratched in the seal at the bottom--"DM" who is believed to be Dale Miller who died in 2005. The other two are the Yellowstones which bear "EM," and are anonymous. We've removed all initials but provided the date of the founding of the park instead. The WPA rarely permitted their poster artists to sign their work. The only original poster known to exist auctioned for just over $4000 in 2006.